Starting today, you can launch Amazon EC2 Spot Instances using Ubuntu Pro based Amazon Machine Images (AMIs). You can now easily deploy Ubuntu Pro Spot instances and get five additional years of security updates from Canonical. You will be charged on a per-second basis for Ubuntu Pro EC2 AMI instances. For any new Ubuntu Pro EC2 AMI deployments, you will now see Ubuntu Pro charges in the Elastic Compute Cloud section of your AWS bill.
Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity available in the AWS cloud. Spot Instances are available at up to a 90% discount compared to On-Demand prices. You can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and other test & development workloads. Spot Instances are easy to launch, scale, and manage through AWS services like Amazon ECS and Amazon EMR, or integrated third parties like Terraform and Jenkins.
Spot Instances can be launched via RunInstances API with a single additional parameter. You can also provision compute capacity across Spot Instances, RIs, and On-Demand instances to optimize performance and cost using EC2 Fleet and Auto Scaling Groups APIs. To learn more about Amazon EC2 Spot Instances, visit Amazon EC2 Spot page or technical documentation.
Source:: Amazon AWS